题目

计算: (1) -22-( - )÷ (2) |2- |-16+ × (3) (-5)×(-3 )-7×(-3 )-12×3 答案: 解:-22-( 16 - 14 )÷ 112 =-4-( 16 - 14 )×12 =-4-2+3 =-3 解:|2- 5 |-16+ 16 × -183 = 5 -2-1+4× (−12) = 5 -2-1-2 = 5 -5 解:(-5)×(-3 67 )-7×(-3 67 )-12×3 67 =3 67 ×(5+7-12) =3 67 ×0 =0
数学 试题推荐
最近更新